.file {
    position: relative;
    display: inline-block;
    background: #1890FF;
    border: 1px solid #99D3F5;
    border-radius: 2px;
    padding: 4px 12px;
    overflow: hidden;
    color: #F0FFFF;
    text-decoration: none;
    text-indent: 0;
    line-height: 23px;
    margin-top: 5px;
}

.file input {
    position: absolute;
    font-size: 100px;
    right: 0;
    top: 0;
    opacity: 0;
}

.file:hover {
    background: #40A9FF;
    border-color: #78C3F3;
    color: #F0FFFF;
    text-decoration: none;
}

input:hover {
    cursor: pointer;
}
